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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: htmlcell.h | |
3 | // Purpose: wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser | |
4 | // as a basic visual element of HTML page | |
5 | // Author: Vaclav Slavik | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 1999-2003 Vaclav Slavik | |
8 | // Licence: wxWindows Licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | ||
12 | #ifndef _WX_HTMLCELL_H_ | |
13 | #define _WX_HTMLCELL_H_ | |
14 | ||
15 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
16 | #pragma interface "htmlcell.h" | |
17 | #endif | |
18 | ||
19 | #include "wx/defs.h" | |
20 | ||
21 | #if wxUSE_HTML | |
22 | ||
23 | #include "wx/html/htmltag.h" | |
24 | #include "wx/html/htmldefs.h" | |
25 | #include "wx/window.h" | |
26 | ||
27 | ||
28 | class WXDLLIMPEXP_HTML wxHtmlLinkInfo; | |
29 | class WXDLLIMPEXP_HTML wxHtmlCell; | |
30 | class WXDLLIMPEXP_HTML wxHtmlContainerCell; | |
31 | ||
32 | ||
33 | // wxHtmlSelection is data holder with information about text selection. | |
34 | // Selection is defined by two positions (beginning and end of the selection) | |
35 | // and two leaf(!) cells at these positions. | |
36 | class WXDLLIMPEXP_HTML wxHtmlSelection | |
37 | { | |
38 | public: | |
39 | wxHtmlSelection() | |
40 | : m_fromPos(wxDefaultPosition), m_toPos(wxDefaultPosition), | |
41 | m_fromPrivPos(wxDefaultPosition), m_toPrivPos(wxDefaultPosition), | |
42 | m_fromCell(NULL), m_toCell(NULL) {} | |
43 | ||
44 | void Set(const wxPoint& fromPos, const wxHtmlCell *fromCell, | |
45 | const wxPoint& toPos, const wxHtmlCell *toCell); | |
46 | void Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell); | |
47 | ||
48 | const wxHtmlCell *GetFromCell() const { return m_fromCell; } | |
49 | const wxHtmlCell *GetToCell() const { return m_toCell; } | |
50 | ||
51 | // these values are in absolute coordinates: | |
52 | const wxPoint& GetFromPos() const { return m_fromPos; } | |
53 | const wxPoint& GetToPos() const { return m_toPos; } | |
54 | ||
55 | // these are From/ToCell's private data | |
56 | const wxPoint& GetFromPrivPos() const { return m_fromPrivPos; } | |
57 | const wxPoint& GetToPrivPos() const { return m_toPrivPos; } | |
58 | void SetFromPrivPos(const wxPoint& pos) { m_fromPrivPos = pos; } | |
59 | void SetToPrivPos(const wxPoint& pos) { m_toPrivPos = pos; } | |
60 | void ClearPrivPos() { m_toPrivPos = m_fromPrivPos = wxDefaultPosition; } | |
61 | ||
62 | const bool IsEmpty() const | |
63 | { return m_fromPos == wxDefaultPosition && | |
64 | m_toPos == wxDefaultPosition; } | |
65 | ||
66 | private: | |
67 | wxPoint m_fromPos, m_toPos; | |
68 | wxPoint m_fromPrivPos, m_toPrivPos; | |
69 | const wxHtmlCell *m_fromCell, *m_toCell; | |
70 | }; | |
71 | ||
72 | ||
73 | ||
74 | enum wxHtmlSelectionState | |
75 | { | |
76 | wxHTML_SEL_OUT, // currently rendered cell is outside the selection | |
77 | wxHTML_SEL_IN, // ... is inside selection | |
78 | wxHTML_SEL_CHANGING // ... is the cell on which selection state changes | |
79 | }; | |
80 | ||
81 | // Selection state is passed to wxHtmlCell::Draw so that it can render itself | |
82 | // differently e.g. when inside text selection or outside it. | |
83 | class WXDLLIMPEXP_HTML wxHtmlRenderingState | |
84 | { | |
85 | public: | |
86 | wxHtmlRenderingState() : m_selState(wxHTML_SEL_OUT) {} | |
87 | ||
88 | void SetSelectionState(wxHtmlSelectionState s) { m_selState = s; } | |
89 | wxHtmlSelectionState GetSelectionState() const { return m_selState; } | |
90 | ||
91 | void SetFgColour(const wxColour& c) { m_fgColour = c; } | |
92 | const wxColour& GetFgColour() const { return m_fgColour; } | |
93 | void SetBgColour(const wxColour& c) { m_bgColour = c; } | |
94 | const wxColour& GetBgColour() const { return m_bgColour; } | |
95 | ||
96 | private: | |
97 | wxHtmlSelectionState m_selState; | |
98 | wxColour m_fgColour, m_bgColour; | |
99 | }; | |
100 | ||
101 | ||
102 | // HTML rendering customization. This class is used when rendering wxHtmlCells | |
103 | // as a callback: | |
104 | class WXDLLIMPEXP_HTML wxHtmlRenderingStyle | |
105 | { | |
106 | public: | |
107 | virtual wxColour GetSelectedTextColour(const wxColour& clr) = 0; | |
108 | virtual wxColour GetSelectedTextBgColour(const wxColour& clr) = 0; | |
109 | }; | |
110 | ||
111 | // Standard style: | |
112 | class WXDLLIMPEXP_HTML wxDefaultHtmlRenderingStyle : public wxHtmlRenderingStyle | |
113 | { | |
114 | public: | |
115 | virtual wxColour GetSelectedTextColour(const wxColour& clr); | |
116 | virtual wxColour GetSelectedTextBgColour(const wxColour& clr); | |
117 | }; | |
118 | ||
119 | ||
120 | // Information given to cells when drawing them. Contains rendering state, | |
121 | // selection information and rendering style object that can be used to | |
122 | // customize the output. | |
123 | class WXDLLIMPEXP_HTML wxHtmlRenderingInfo | |
124 | { | |
125 | public: | |
126 | wxHtmlRenderingInfo() : m_selection(NULL), m_style(NULL) {} | |
127 | ||
128 | void SetSelection(wxHtmlSelection *s) { m_selection = s; } | |
129 | wxHtmlSelection *GetSelection() const { return m_selection; } | |
130 | ||
131 | void SetStyle(wxHtmlRenderingStyle *style) { m_style = style; } | |
132 | wxHtmlRenderingStyle& GetStyle() { return *m_style; } | |
133 | ||
134 | wxHtmlRenderingState& GetState() { return m_state; } | |
135 | ||
136 | protected: | |
137 | wxHtmlSelection *m_selection; | |
138 | wxHtmlRenderingStyle *m_style; | |
139 | wxHtmlRenderingState m_state; | |
140 | }; | |
141 | ||
142 | ||
143 | // Flags for wxHtmlCell::FindCellByPos | |
144 | enum | |
145 | { | |
146 | wxHTML_FIND_EXACT = 1, | |
147 | wxHTML_FIND_NEAREST_BEFORE = 2, | |
148 | wxHTML_FIND_NEAREST_AFTER = 4 | |
149 | }; | |
150 | ||
151 | ||
152 | ||
153 | ||
154 | // --------------------------------------------------------------------------- | |
155 | // wxHtmlCell | |
156 | // Internal data structure. It represents fragments of parsed | |
157 | // HTML page - a word, picture, table, horizontal line and so | |
158 | // on. It is used by wxHtmlWindow to represent HTML page in | |
159 | // memory. | |
160 | // --------------------------------------------------------------------------- | |
161 | ||
162 | ||
163 | class WXDLLIMPEXP_HTML wxHtmlCell : public wxObject | |
164 | { | |
165 | public: | |
166 | wxHtmlCell(); | |
167 | virtual ~wxHtmlCell(); | |
168 | ||
169 | void SetParent(wxHtmlContainerCell *p) {m_Parent = p;} | |
170 | wxHtmlContainerCell *GetParent() const {return m_Parent;} | |
171 | ||
172 | int GetPosX() const {return m_PosX;} | |
173 | int GetPosY() const {return m_PosY;} | |
174 | int GetWidth() const {return m_Width;} | |
175 | ||
176 | // Returns the maximum possible length of the cell. | |
177 | // Call Layout at least once before using GetMaxTotalWidth() | |
178 | virtual int GetMaxTotalWidth() const { return m_Width; } | |
179 | ||
180 | int GetHeight() const {return m_Height;} | |
181 | int GetDescent() const {return m_Descent;} | |
182 | ||
183 | // Formatting cells are not visible on the screen, they only alter | |
184 | // renderer's state. | |
185 | bool IsFormattingCell() const { return m_Width == 0 && m_Height == 0; } | |
186 | ||
187 | const wxString& GetId() const { return m_id; } | |
188 | void SetId(const wxString& id) { m_id = id; } | |
189 | ||
190 | // returns the link associated with this cell. The position is position | |
191 | // within the cell so it varies from 0 to m_Width, from 0 to m_Height | |
192 | virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0, | |
193 | int WXUNUSED(y) = 0) const | |
194 | { return m_Link; } | |
195 | ||
196 | // Returns cursor to be used when mouse is over the cell: | |
197 | virtual wxCursor GetCursor() const; | |
198 | ||
199 | // return next cell among parent's cells | |
200 | wxHtmlCell *GetNext() const {return m_Next;} | |
201 | // returns first child cell (if there are any, i.e. if this is container): | |
202 | virtual wxHtmlCell* GetFirstChild() const { return NULL; } | |
203 | ||
204 | // members writing methods | |
205 | virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;} | |
206 | void SetLink(const wxHtmlLinkInfo& link); | |
207 | void SetNext(wxHtmlCell *cell) {m_Next = cell;} | |
208 | ||
209 | // 1. adjust cell's width according to the fact that maximal possible width | |
210 | // is w. (this has sense when working with horizontal lines, tables | |
211 | // etc.) | |
212 | // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height) | |
213 | // members) = place items to fit window, according to the width w | |
214 | virtual void Layout(int w); | |
215 | ||
216 | // renders the cell | |
217 | virtual void Draw(wxDC& WXUNUSED(dc), | |
218 | int WXUNUSED(x), int WXUNUSED(y), | |
219 | int WXUNUSED(view_y1), int WXUNUSED(view_y2), | |
220 | wxHtmlRenderingInfo& WXUNUSED(info)) {} | |
221 | ||
222 | // proceed drawing actions in case the cell is not visible (scrolled out of | |
223 | // screen). This is needed to change fonts, colors and so on. | |
224 | virtual void DrawInvisible(wxDC& WXUNUSED(dc), | |
225 | int WXUNUSED(x), int WXUNUSED(y), | |
226 | wxHtmlRenderingInfo& WXUNUSED(info)) {} | |
227 | ||
228 | // This method returns pointer to the FIRST cell for that | |
229 | // the condition | |
230 | // is true. It first checks if the condition is true for this | |
231 | // cell and then calls m_Next->Find(). (Note: it checks | |
232 | // all subcells if the cell is container) | |
233 | // Condition is unique condition identifier (see htmldefs.h) | |
234 | // (user-defined condition IDs should start from 10000) | |
235 | // and param is optional parameter | |
236 | // Example : m_Cell->Find(wxHTML_COND_ISANCHOR, "news"); | |
237 | // returns pointer to anchor news | |
238 | virtual const wxHtmlCell* Find(int condition, const void* param) const; | |
239 | ||
240 | // This function is called when mouse button is clicked over the cell. | |
241 | // | |
242 | // Parent is pointer to wxHtmlWindow that generated the event | |
243 | // HINT: if this handling is not enough for you you should use | |
244 | // wxHtmlWidgetCell | |
245 | virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event); | |
246 | ||
247 | // This method used to adjust pagebreak position. The parameter is variable | |
248 | // that contains y-coordinate of page break (= horizontal line that should | |
249 | // not be crossed by words, images etc.). If this cell cannot be divided | |
250 | // into two pieces (each one on another page) then it moves the pagebreak | |
251 | // few pixels up. | |
252 | // | |
253 | // Returned value : true if pagebreak was modified, false otherwise | |
254 | // Usage : while (container->AdjustPagebreak(&p)) {} | |
255 | virtual bool AdjustPagebreak(int *pagebreak, | |
256 | int *known_pagebreaks = NULL, | |
257 | int number_of_pages = 0) const; | |
258 | ||
259 | // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default | |
260 | // is true - the cell can be split on two pages | |
261 | void SetCanLiveOnPagebreak(bool can) { m_CanLiveOnPagebreak = can; } | |
262 | ||
263 | // Can the line be broken before this cell? | |
264 | virtual bool IsLinebreakAllowed() const | |
265 | { return !IsFormattingCell(); } | |
266 | ||
267 | // Returns true for simple == terminal cells, i.e. not composite ones. | |
268 | // This if for internal usage only and may disappear in future versions! | |
269 | virtual bool IsTerminalCell() const { return true; } | |
270 | ||
271 | // Find a cell inside this cell positioned at the given coordinates | |
272 | // (relative to this's positions). Returns NULL if no such cell exists. | |
273 | // The flag can be used to specify whether to look for terminal or | |
274 | // nonterminal cells or both. In either case, returned cell is deepest | |
275 | // cell in cells tree that contains [x,y]. | |
276 | virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y, | |
277 | unsigned flags = wxHTML_FIND_EXACT) const; | |
278 | ||
279 | // Returns absolute position of the cell on HTML canvas | |
280 | wxPoint GetAbsPos() const; | |
281 | ||
282 | // Returns first (last) terminal cell inside this cell. It may return NULL, | |
283 | // but it is rare -- only if there are no terminals in the tree. | |
284 | virtual wxHtmlCell *GetFirstTerminal() const | |
285 | { return wxConstCast(this, wxHtmlCell); } | |
286 | virtual wxHtmlCell *GetLastTerminal() const | |
287 | { return wxConstCast(this, wxHtmlCell); } | |
288 | ||
289 | // Returns cell's depth, i.e. how far under the root cell it is | |
290 | // (if it is the root, depth is 0) | |
291 | unsigned GetDepth() const; | |
292 | ||
293 | // Returns true if the cell appears before 'cell' in natural order of | |
294 | // cells (= as they are read). If cell A is (grand)parent of cell B, | |
295 | // then both A.IsBefore(B) and B.IsBefore(A) always return true. | |
296 | bool IsBefore(wxHtmlCell *cell) const; | |
297 | ||
298 | // Converts the cell into text representation. If sel != NULL then | |
299 | // only part of the cell inside the selection is converted. | |
300 | virtual wxString ConvertToText(wxHtmlSelection *WXUNUSED(sel)) const | |
301 | { return wxEmptyString; } | |
302 | ||
303 | protected: | |
304 | wxHtmlCell *m_Next; | |
305 | // pointer to the next cell | |
306 | wxHtmlContainerCell *m_Parent; | |
307 | // pointer to parent cell | |
308 | long m_Width, m_Height, m_Descent; | |
309 | // dimensions of fragment | |
310 | // m_Descent is used to position text&images.. | |
311 | long m_PosX, m_PosY; | |
312 | // position where the fragment is drawn | |
313 | wxHtmlLinkInfo *m_Link; | |
314 | // destination address if this fragment is hypertext link, NULL otherwise | |
315 | bool m_CanLiveOnPagebreak; | |
316 | // true if this cell can be placed on pagebreak, false otherwise | |
317 | wxString m_id; | |
318 | // unique identifier of the cell, generated from "id" property of tags | |
319 | ||
320 | DECLARE_ABSTRACT_CLASS(wxHtmlCell) | |
321 | DECLARE_NO_COPY_CLASS(wxHtmlCell) | |
322 | }; | |
323 | ||
324 | ||
325 | ||
326 | ||
327 | // ---------------------------------------------------------------------------- | |
328 | // Inherited cells: | |
329 | // ---------------------------------------------------------------------------- | |
330 | ||
331 | ||
332 | // ---------------------------------------------------------------------------- | |
333 | // wxHtmlWordCell | |
334 | // Single word in input stream. | |
335 | // ---------------------------------------------------------------------------- | |
336 | ||
337 | class WXDLLIMPEXP_HTML wxHtmlWordCell : public wxHtmlCell | |
338 | { | |
339 | public: | |
340 | wxHtmlWordCell(const wxString& word, wxDC& dc); | |
341 | void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
342 | wxHtmlRenderingInfo& info); | |
343 | wxCursor GetCursor() const; | |
344 | wxString ConvertToText(wxHtmlSelection *sel) const; | |
345 | bool IsLinebreakAllowed() const { return m_allowLinebreak; } | |
346 | ||
347 | void SetPreviousWord(wxHtmlWordCell *cell); | |
348 | ||
349 | protected: | |
350 | void SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const; | |
351 | void Split(wxDC& dc, | |
352 | const wxPoint& selFrom, const wxPoint& selTo, | |
353 | unsigned& pos1, unsigned& pos2) const; | |
354 | ||
355 | wxString m_Word; | |
356 | bool m_allowLinebreak; | |
357 | ||
358 | DECLARE_ABSTRACT_CLASS(wxHtmlWordCell) | |
359 | DECLARE_NO_COPY_CLASS(wxHtmlWordCell) | |
360 | }; | |
361 | ||
362 | ||
363 | ||
364 | ||
365 | ||
366 | // Container contains other cells, thus forming tree structure of rendering | |
367 | // elements. Basic code of layout algorithm is contained in this class. | |
368 | class WXDLLIMPEXP_HTML wxHtmlContainerCell : public wxHtmlCell | |
369 | { | |
370 | public: | |
371 | wxHtmlContainerCell(wxHtmlContainerCell *parent); | |
372 | ~wxHtmlContainerCell(); | |
373 | ||
374 | virtual void Layout(int w); | |
375 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
376 | wxHtmlRenderingInfo& info); | |
377 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
378 | wxHtmlRenderingInfo& info); | |
379 | virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const; | |
380 | ||
381 | // insert cell at the end of m_Cells list | |
382 | void InsertCell(wxHtmlCell *cell); | |
383 | ||
384 | // sets horizontal/vertical alignment | |
385 | void SetAlignHor(int al) {m_AlignHor = al; m_LastLayout = -1;} | |
386 | int GetAlignHor() const {return m_AlignHor;} | |
387 | void SetAlignVer(int al) {m_AlignVer = al; m_LastLayout = -1;} | |
388 | int GetAlignVer() const {return m_AlignVer;} | |
389 | ||
390 | // sets left-border indentation. units is one of wxHTML_UNITS_* constants | |
391 | // what is combination of wxHTML_INDENT_* | |
392 | void SetIndent(int i, int what, int units = wxHTML_UNITS_PIXELS); | |
393 | // returns the indentation. ind is one of wxHTML_INDENT_* constants | |
394 | int GetIndent(int ind) const; | |
395 | // returns type of value returned by GetIndent(ind) | |
396 | int GetIndentUnits(int ind) const; | |
397 | ||
398 | // sets alignment info based on given tag's params | |
399 | void SetAlign(const wxHtmlTag& tag); | |
400 | // sets floating width adjustment | |
401 | // (examples : 32 percent of parent container, | |
402 | // -15 pixels percent (this means 100 % - 15 pixels) | |
403 | void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units; m_LastLayout = -1;} | |
404 | void SetWidthFloat(const wxHtmlTag& tag, double pixel_scale = 1.0); | |
405 | // sets minimal height of this container. | |
406 | void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align; m_LastLayout = -1;} | |
407 | ||
408 | void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = true; m_BkColour = clr;} | |
409 | // returns background colour (of wxNullColour if none set), so that widgets can | |
410 | // adapt to it: | |
411 | wxColour GetBackgroundColour(); | |
412 | void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = true; m_BorderColour1 = clr1, m_BorderColour2 = clr2;} | |
413 | virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const; | |
414 | virtual const wxHtmlCell* Find(int condition, const void* param) const; | |
415 | virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event); | |
416 | ||
417 | virtual wxHtmlCell* GetFirstChild() const { return m_Cells; } | |
418 | #if WXWIN_COMPATIBILITY_2_4 | |
419 | wxDEPRECATED( wxHtmlCell* GetFirstCell() const ); | |
420 | #endif | |
421 | ||
422 | // see comment in wxHtmlCell about this method | |
423 | virtual bool IsTerminalCell() const { return false; } | |
424 | ||
425 | virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y, | |
426 | unsigned flags = wxHTML_FIND_EXACT) const; | |
427 | ||
428 | virtual wxHtmlCell *GetFirstTerminal() const; | |
429 | virtual wxHtmlCell *GetLastTerminal() const; | |
430 | ||
431 | ||
432 | // Removes indentation on top or bottom of the container (i.e. above or | |
433 | // below first/last terminal cell). For internal use only. | |
434 | void RemoveExtraSpacing(bool top, bool bottom); | |
435 | ||
436 | // Returns the maximum possible length of the container. | |
437 | // Call Layout at least once before using GetMaxTotalWidth() | |
438 | virtual int GetMaxTotalWidth() const { return m_MaxTotalWidth; } | |
439 | ||
440 | protected: | |
441 | void UpdateRenderingStatePre(wxHtmlRenderingInfo& info, | |
442 | wxHtmlCell *cell) const; | |
443 | void UpdateRenderingStatePost(wxHtmlRenderingInfo& info, | |
444 | wxHtmlCell *cell) const; | |
445 | ||
446 | protected: | |
447 | int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom; | |
448 | // indentation of subcells. There is always m_Indent pixels | |
449 | // big space between given border of the container and the subcells | |
450 | // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels | |
451 | int m_MinHeight, m_MinHeightAlign; | |
452 | // minimal height. | |
453 | wxHtmlCell *m_Cells, *m_LastCell; | |
454 | // internal cells, m_Cells points to the first of them, m_LastCell to the last one. | |
455 | // (LastCell is needed only to speed-up InsertCell) | |
456 | int m_AlignHor, m_AlignVer; | |
457 | // alignment horizontal and vertical (left, center, right) | |
458 | int m_WidthFloat, m_WidthFloatUnits; | |
459 | // width float is used in adjustWidth | |
460 | bool m_UseBkColour; | |
461 | wxColour m_BkColour; | |
462 | // background color of this container | |
463 | bool m_UseBorder; | |
464 | wxColour m_BorderColour1, m_BorderColour2; | |
465 | // borders color of this container | |
466 | int m_LastLayout; | |
467 | // if != -1 then call to Layout may be no-op | |
468 | // if previous call to Layout has same argument | |
469 | int m_MaxTotalWidth; | |
470 | // Maximum possible length if ignoring line wrap | |
471 | ||
472 | ||
473 | DECLARE_ABSTRACT_CLASS(wxHtmlContainerCell) | |
474 | DECLARE_NO_COPY_CLASS(wxHtmlContainerCell) | |
475 | }; | |
476 | ||
477 | #if WXWIN_COMPATIBILITY_2_4 | |
478 | inline wxHtmlCell* wxHtmlContainerCell::GetFirstCell() const | |
479 | { return GetFirstChild(); } | |
480 | #endif | |
481 | ||
482 | ||
483 | ||
484 | ||
485 | // --------------------------------------------------------------------------- | |
486 | // wxHtmlColourCell | |
487 | // Color changer. | |
488 | // --------------------------------------------------------------------------- | |
489 | ||
490 | class WXDLLIMPEXP_HTML wxHtmlColourCell : public wxHtmlCell | |
491 | { | |
492 | public: | |
493 | wxHtmlColourCell(const wxColour& clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;} | |
494 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
495 | wxHtmlRenderingInfo& info); | |
496 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
497 | wxHtmlRenderingInfo& info); | |
498 | ||
499 | protected: | |
500 | wxColour m_Colour; | |
501 | unsigned m_Flags; | |
502 | ||
503 | DECLARE_ABSTRACT_CLASS(wxHtmlColourCell) | |
504 | DECLARE_NO_COPY_CLASS(wxHtmlColourCell) | |
505 | }; | |
506 | ||
507 | ||
508 | ||
509 | ||
510 | //-------------------------------------------------------------------------------- | |
511 | // wxHtmlFontCell | |
512 | // Sets actual font used for text rendering | |
513 | //-------------------------------------------------------------------------------- | |
514 | ||
515 | class WXDLLIMPEXP_HTML wxHtmlFontCell : public wxHtmlCell | |
516 | { | |
517 | public: | |
518 | wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); } | |
519 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
520 | wxHtmlRenderingInfo& info); | |
521 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
522 | wxHtmlRenderingInfo& info); | |
523 | ||
524 | protected: | |
525 | wxFont m_Font; | |
526 | ||
527 | DECLARE_ABSTRACT_CLASS(wxHtmlFontCell) | |
528 | DECLARE_NO_COPY_CLASS(wxHtmlFontCell) | |
529 | }; | |
530 | ||
531 | ||
532 | ||
533 | ||
534 | ||
535 | ||
536 | //-------------------------------------------------------------------------------- | |
537 | // wxHtmlwidgetCell | |
538 | // This cell is connected with wxWindow object | |
539 | // You can use it to insert windows into HTML page | |
540 | // (buttons, input boxes etc.) | |
541 | //-------------------------------------------------------------------------------- | |
542 | ||
543 | class WXDLLIMPEXP_HTML wxHtmlWidgetCell : public wxHtmlCell | |
544 | { | |
545 | public: | |
546 | // !!! wnd must have correct parent! | |
547 | // if w != 0 then the m_Wnd has 'floating' width - it adjust | |
548 | // it's width according to parent container's width | |
549 | // (w is percent of parent's width) | |
550 | wxHtmlWidgetCell(wxWindow *wnd, int w = 0); | |
551 | ~wxHtmlWidgetCell() { m_Wnd->Destroy(); } | |
552 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
553 | wxHtmlRenderingInfo& info); | |
554 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
555 | wxHtmlRenderingInfo& info); | |
556 | virtual void Layout(int w); | |
557 | ||
558 | protected: | |
559 | wxWindow* m_Wnd; | |
560 | int m_WidthFloat; | |
561 | // width float is used in adjustWidth (it is in percents) | |
562 | ||
563 | DECLARE_ABSTRACT_CLASS(wxHtmlWidgetCell) | |
564 | DECLARE_NO_COPY_CLASS(wxHtmlWidgetCell) | |
565 | }; | |
566 | ||
567 | ||
568 | ||
569 | //-------------------------------------------------------------------------------- | |
570 | // wxHtmlLinkInfo | |
571 | // Internal data structure. It represents hypertext link | |
572 | //-------------------------------------------------------------------------------- | |
573 | ||
574 | class WXDLLIMPEXP_HTML wxHtmlLinkInfo : public wxObject | |
575 | { | |
576 | public: | |
577 | wxHtmlLinkInfo() : wxObject() | |
578 | { m_Href = m_Target = wxEmptyString; m_Event = NULL, m_Cell = NULL; } | |
579 | wxHtmlLinkInfo(const wxString& href, const wxString& target = wxEmptyString) : wxObject() | |
580 | { m_Href = href; m_Target = target; m_Event = NULL, m_Cell = NULL; } | |
581 | wxHtmlLinkInfo(const wxHtmlLinkInfo& l) : wxObject() | |
582 | { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event; | |
583 | m_Cell = l.m_Cell; } | |
584 | wxHtmlLinkInfo& operator=(const wxHtmlLinkInfo& l) | |
585 | { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event; | |
586 | m_Cell = l.m_Cell; return *this; } | |
587 | ||
588 | void SetEvent(const wxMouseEvent *e) { m_Event = e; } | |
589 | void SetHtmlCell(const wxHtmlCell *e) { m_Cell = e; } | |
590 | ||
591 | wxString GetHref() const { return m_Href; } | |
592 | wxString GetTarget() const { return m_Target; } | |
593 | const wxMouseEvent* GetEvent() const { return m_Event; } | |
594 | const wxHtmlCell* GetHtmlCell() const { return m_Cell; } | |
595 | ||
596 | private: | |
597 | wxString m_Href, m_Target; | |
598 | const wxMouseEvent *m_Event; | |
599 | const wxHtmlCell *m_Cell; | |
600 | }; | |
601 | ||
602 | ||
603 | ||
604 | // ---------------------------------------------------------------------------- | |
605 | // wxHtmlTerminalCellsInterator | |
606 | // ---------------------------------------------------------------------------- | |
607 | ||
608 | class WXDLLIMPEXP_HTML wxHtmlTerminalCellsInterator | |
609 | { | |
610 | public: | |
611 | wxHtmlTerminalCellsInterator(const wxHtmlCell *from, const wxHtmlCell *to) | |
612 | : m_to(to), m_pos(from) {} | |
613 | ||
614 | operator bool() const { return m_pos != NULL; } | |
615 | const wxHtmlCell* operator++(); | |
616 | const wxHtmlCell* operator->() const { return m_pos; } | |
617 | const wxHtmlCell* operator*() const { return m_pos; } | |
618 | ||
619 | private: | |
620 | const wxHtmlCell *m_to, *m_pos; | |
621 | }; | |
622 | ||
623 | ||
624 | ||
625 | #endif // wxUSE_HTML | |
626 | ||
627 | #endif // _WX_HTMLCELL_H_ | |
628 |